基于SWAT模型的浊漳河干流灌溉制度优化研究  

Study on the Optimization of Irrigation Schedule in the Main Stream of Zhuozhang River Based on SWAT Model

作　　者：吕梦醒[1] 张展羽[1] 冯宝平[1] 司涵[1] 陈于[1] 

机构地区：[1]河海大学水利水电学院,江苏南京210098

出　　处：《节水灌溉》2015年第1期90-95,共6页Water Saving Irrigation

基　　金：水利部公益性行业专项经费项目(201201091-03);江苏高校优势学科建设工程资助项目(水利工程sys1101)

摘　　要：运用SWAT(Soil and Water Assessment Tool)模型,以浊漳河干流为研究区域,对流域蒸散发ET及径流过程进行了率定和验证,并探讨了流域冬小麦-夏玉米轮作体系下不同典型年农业优化灌溉制度。模拟结果表明,ET及径流的模拟值与实测值决定系数R2和Nash-Suttcliffe系数Ens均达到了0.70以上,模拟精度适合浊漳河干流的模拟研究。应用构建的模型设置冬小麦和夏玉米16种灌溉处理,在保证作物产量及水分生产率WUE的前提下,综合考虑流域下泄径流量,得到了不同典型年较优的灌溉制度,对于该区域冬小麦-夏玉米轮作体系下的农田节水灌溉管理具有一定的参考价值。Taking the main stream of Zhuozhang River as a case study region,the Soil and Water Assessment Tool（SWAT,2009）is used to calibrate and verify the evapotranspiration and flow.Also the optimization of irrigation schedule of different typical years in winter wheat-summer maize rotation cropping system is discussed.The results show that the determination coefficient,R2,and Nash？Suttcliffe coefficient,Ens,of ETand runoff by comparative analysis of the simulation and observation data are all above 0.70,thus the SWAT model is applicable for the study area.Then the SWAT model is used to establish 16 irrigation treatments and the optimum irrigation system for three different typical years considering the regional runoff is obtained allowing for the yield and WUE.The research results have reference value for the management of water-saving irrigation in the study area.

关 键 词：SWAT模型 灌溉制度 浊漳河干流 

分 类 号：S274.1[农业科学—农业水土工程]